OWINGS MILLS, Md. — As the Ravens practiced for the final time in preparation for the Arizona Cardinals on Sunday, safety Ed Reed was back on the field.

His level of activity was up for debate, however, during a very brief period of practice that was open to the media. Reed did not appear to have a helmet, but he was going through the walk-through portion of practice, but he was spotted inside the building during the closing moments of practice Friday afternoon.

Coach John Harbaugh confirmed Reed’s availability against the Cardinals following Friday’s practice.

“Yeah, he’ll be able to play.”

Reed did not participate during Thursday’s practice and was listed with a neck injury, which likely stems from the shoulder burner he sustained late in the fourth quarter against Jacksonville. The All-Pro safety practiced fully on Wednesday.

There were no changes for receiver Lee Evans (ankle), guard Ben Grubbs (toe), linebacker Dannell Ellerbe (hamstring), and running back Anthony Allen (thigh), who were all missing from the practice field for the third straight day this week. None of the four are expected to play on Sunday and will likely be ruled out when the final injury report is released Friday afternoon.

Cornerback Danny Gorrer, who appeared to suffer a thigh injury during the open portion of practice on Thursday, was present on the field without a helmet and did not appear to be practicing. He was listed as limited on Thursday’s injury report.

Defensive backs Chris Carr (hamstring) and Tom Zbikowski (head) were practicing after being listed as full participants on Thursday. Harbaugh confirmed after practice that Zbikowski has been cleared for contact.

ZEBRAS: Jeff Triplette and his crew will be officiating Sunday’s game between the Ravens and Cardinals. He officiated Baltimore’s playoff loss in Pittsburgh last season.